Pipe-wrench.



No. 778,278. P-ATENTED DEC. 27, 1904. RSGHEFPBRJR. PIPE WRENCH.

APPLICATION FILED MAB. 15 1904.

UNITED STATES Patented December 27, 1904.

PATENT OFFICE.

FRITZ SCHEFFER, JR, OF REMSCHEID-HADDENBACH, GERMANY, ASSIGNOR TO GESELLSCHAFT FUER WERKZEUGINDUSTRIE, G. M. B. 'H., OF REM- SCHEID-HADDENBACH, PRUSS1A,-

GERMANY.

PlP-WRENCH.

SPECIFICATION forming part of Letters Patent No. 778,278, dated December 27, 1904- Application filed March 15, 1904. Serial No. 198,202.

To all whom it may concern:

Be it known that I, FRITZ SOHEFFER, J r., a subject of the German Emperor, residing at Remscheid-Haddenbach, in the Province of the Rhine, Kingdom of Prussia, Germany,

have invented certain new and useful Improvements in Pipe-Wrenches, of which the following is a specification.

My invention relates to a pipe wrench IO whereby pipes and similar objects can be firmly gripped; and the object of my invention is to provide a wrench of this kind which is simple in construction and adapted to securely hold the objects which are placed be- 5 tween the jaws of the wrench against rotation.

In the accompanying drawings, which form part of this specification, and in which similar reference-letters refer to similar parts in the various figures, Figure 1 is a side view of the new pipe-wrench, showing the jaws closed. Fig. 2 is a similar view, the jaws being shown opened. Fig. 3 is a rear end view of the new pipe-wrench.

The jaw (designated by the reference-letter 5 0) is formed at the inner end of the lever 0 and is stationary. Cooperating with the jaw c the angularly-shapedjaw a is provided, which jaw is pivotally connected at Z) with a link (Z, which link is pivoted at it to the first jaw 0,

'3 the jaw 64 and the link at forming the members of a toggle-lever adapted to be swung around the pivot h. To the jaw a there is pivoted at e an arm g, the other end of which link is secured to the lever f of the pipewrench. The inner faces of the jaws 0 and a are corrugated, as shownatla and z, in aknown manner in order to more securely grip and hold the objects placed between the jaws.

The operation of the pipe-wrench will be readily understood from the drawings. When the lever f is moved toward the lever 0, the toggle-lever a (Z is swung, by means of the link g, around the pivot 7b, whereby the relative position of the pivot b with respect to pivot 70 is shifted in such a way as to cause the jaw a to approach the stationary jaw c, as shown in Fig. 1. Any object placed between the jaws is therefore firmly gripped and securely held against rotation.

-What I desire to claim and secure by Letters Patent is In a pipe-wrench the combination with a stationary jaw, of an angularly-shaped movable jaw, forming one member of a togglelever, the other member of said lever being pivotally connected with the stationary jaw and an arm connecting the movable jaw with one lever of the wrench.

In testimonywhereof Iafiix my signature in presence of two witnesses.

FRITZ SOHEFFER, JR.

Witnesses:

VICTOR W. HELDT,

ENGELBERT VOLMER. 

